<template>
  <div class="container">
    <div class="wrap">
      <mpvue-echarts :echarts="echarts" :onInit="onInit" />
    </div>
  </div>
</template>

<script>
import * as echarts from 'echarts/dist/echarts.simple.min'
import mpvueEcharts from 'mpvue-echarts'

let chart = null

function initChart (canvas, width, height) {
  chart = echarts.init(canvas, null, {
    width: width,
    height: height
  })
  canvas.setChart(chart)

  var option = {
    color: ['#37a2da', '#32c5e9', '#67e0e3'],
    tooltip: {
      trigger: 'axis',
      axisPointer: { // 坐标轴指示器，坐标轴触发有效
        type: 'shadow' // 默认为直线，可选为：'line' | 'shadow'
      },
      confine: true
    },
    legend: {
      data: ['热度', '正面', '负面']
    },
    grid: {
      left: 20,
      right: 20,
      bottom: 15,
      top: 40,
      containLabel: true
    },
    xAxis: [
      {
        type: 'value',
        axisLine: {
          lineStyle: {
            color: '#999'
          }
        },
        axisLabel: {
          color: '#666'
        }
      }
    ],
    yAxis: [
      {
        type: 'category',
        axisTick: { show: false },
        data: ['汽车之家', '今日头条', '百度贴吧', '一点资讯', '微信', '微博', '知乎'],
        axisLine: {
          lineStyle: {
            color: '#999'
          }
        },
        axisLabel: {
          color: '#666'
        }
      }
    ],
    series: [
      {
        name: '热度',
        type: 'bar',
        label: {
          normal: {
            show: true,
            position: 'inside'
          }
        },
        data: [300, 270, 340, 344, 300, 320, 310],
        itemStyle: {
          emphasis: {
            color: '#37a2da'
          }
        }
      },
      {
        name: '正面',
        type: 'bar',
        stack: '总量',
        label: {
          normal: {
            show: true
          }
        },
        data: [120, 102, 141, 174, 190, 250, 220],
        itemStyle: {
          emphasis: {
            color: '#32c5e9'
          }
        }
      },
      {
        name: '负面',
        type: 'bar',
        stack: '总量',
        label: {
          normal: {
            show: true,
            position: 'left'
          }
        },
        data: [-20, -32, -21, -34, -90, -130, -110],
        itemStyle: {
          emphasis: {
            color: '#67e0e3'
          }
        }
      }
    ]
  }

  chart.setOption(option)
  return chart
}

export default {
  data () {
    return {
      echarts,
      onInit: initChart
    }
  },

  components: {
    mpvueEcharts
  },

  onShareAppMessage () {}
}
</script>

<style scoped>
.wrap {
  width: 100%;
  height: 300px;
}
</style>
